Electronics > Repair
Fluke 289 not quite sorted.
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MihaiV:
Correct, the configuration file from post 163 is set with an ARM7 core, while the MXS datasheet says it uses an ARM9. But won't the setting be the same (base address, size, organization)? (I have a 287, by the way).
maximalcho:
Yes the flash settings are the same but when you change core type they return by default and you have to set them again.Maybe changing core type from arm7 to arm9 doesn't matter but i changed it just in case.
My English is not very good I hope you understand what I mean. :)
MihaiV:
Your English is good, I understood with no problems!
I switched to ARM9 too, re-configured the flash settings.
Here is a fun fact though: I tried reading again the entire chip and got the same error with ramCode and all, and after that it struck me to try it without using the target ram. I unticked the setting and now I can read the chip, without any command-line magic! And fairly quick too, only 23 seconds.

I also tried to program it with AnJu's file but the chip is locked. I get a "Block lock-bit detected!". I guess i have to erase the entire chip to unsecure it, right?
MihaiV:
I must have done something really wrong here...
I erased the entire flash yesterday and then I was able to program the first part of AnJu's binary (2.fs 0x10040000.bin).
Without using target RAM it only took 14592 seconds, but it completed successfully (in attachment). Today I tried to upload the remaining part ( 3.FIS directory 0x107E0000.bin ) but I couldn't! I got the same "Block lock-bit detected!" message on the J-Flash.

Prepairing for another 4h of uploading, I erased the flash again to "unlock" it, to flash the FIS directory and after that the rest of the fs. But I couldn't do any of it! The flash is empty, I can read it back, but I can't even write the initial content!

Is there a way to erase those lock-bits? Did I brick it?
ehobby:
Hopefully just a quick question...  Has anyone come across a datasheet or app note for the LTC939CS regulator used in the 289?  I have not been able to find anything on the web except the fact that lots of third parties stock it.

Thanks
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